Question

Find the greatest common factor of x^2 and 15xy. A. 1 B. 15 C. x D. 15xy

Answer 1

Have another look at x^2 and 15xy.  The only factor common to both terms is x.  Thus, C is the correct answer.

Answer 2

C. x is the greatest common factor because it is the only term from these answer choices that is a factor of both terms.